/**
 * @ClassDescription:
 * @JdkVersion: 17
 * @Author: yxy
 * @Created: 2023/12/18 11:30
 */
public class Person {
    public static void main(String[] args) {
        System.out.println("我是人类");
    }
}
class Pig{
    public static void main(String[] args) {
        System.out.println("我是猪类");
    }
}
